Cheung Sha Wan (長沙灣; Chèuhngsāwàahn; 'Long Sandy Bay') is an area between Lai Chi Kok and Sham Shui Po in New Kowloon, Hong Kong. It is mainly residential to the north and south, with an industrial area in between. Administratively it is part of Sham Shui Po District, which also includes Lai Chi Kok.

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The 灣 in its Cantonese name would normally be pronounced as wāan with a first, high-flat tone; however, in this particular case, the tone shifts to a fourth, low-falling tone, making it wàahn instead. The same tone shift happens in the Cantonese names of To Kwa Wan (土瓜灣; Tóugwāwàahn) and Causeway Bay (銅鑼灣; Tùhnglòhwàahn), though Tùhnglòhwāan with a first tone is also common.

As its Cantonese name suggests, it was formerly a bay with a long sandy beach. It spans roughly from today's Butterfly Valley Road at the west to Yen Chow Street at the east. The beach was a gathering place for many Tanka fishermen before its development. The original shoreline approximates the present Castle Peak Road and Un Chau Street. Inland, villages of Om Yam, Ma Lung Hang, Pak Shu Lung, So Uk, Li Uk, Wong Uk and others sparsely occupied the whole bay of Cheung Sha Wan. Rivers from Beacon Hill, Crow's Nest and Piper's Hill formed a long plain behind the beach. Farmlands filled between villages. A larger river ran in Butterfly Valley separating Cheung Sha Wan and Lai Chi Kok. A sandbar was found at the mouth of its estuary.

The Lei Cheng Uk Han Tomb is located in Cheung Sha Wan, and dates from AD 25 - 220. It is the oldest known constructed structure in Hong Kong, and demonstrates that early Chinese civilisation had spread to Hong Kong by 2,000 years ago.

At the time of the 1911 census, the population of Cheung Sha Wan was 653. The number of males was 496.^[1]

Before World War I, two ends, Lai Chi Kok and Sham Shui Po, of Cheung Sha Wan had been reclaimed. The former was for military use and the later emerged as a new town north of Tai Kok Tsui.

In April 2006, a total of 580 unused shells from the Japanese occupation of Hong Kong were found buried at Tonkin Street in Cheung Sha Wan. The residents were temporarily evacuated and the shells were detonated safely.

The bay of Cheung Sha Wan was reclaimed in several phases in the twentieth century. The last reclamation in 1990s extended the area close to Stonecutters Island. The shipbuilding and repair industries on the old shore were moved to near the island and the sites were replaced by some private housing estates constructed in the early 2000s.

Cheung Sha Wan was a manufacturing centre after the war, with a number of light industries, especially textile and clothing. After the PRC implemented its open door policy in the 1980s, many factories relocated to the mainland, vacating the area's industrial buildings (some of which have since been converted into offices and warehouses). There are several wholesale markets in Cheung Sha Wan. They include Cheung San Wan Temporary Wholesale Poultry Market, Cheung Sha Wan Vegetable Wholesale Market and many wholesale clothes markets. The Vegetable Marketing Organisation's Premium Vegetable Packaging Centre also locates in central Cheung Sha Wan.

The head office of Giordano is in the Tin On Industrial Building, Cheung Sha Wan.^[2]

Cheung Sha Wan is in Primary One Admission (POA) School Net 40. Within the school net are multiple aided schools (operated independently but funded with government money) and two government schools: Fuk Wing Street Government Primary School and Li Cheng Uk Government Primary School.^[20]